c section incision message?

lo lo

I'm on my second c section. I went in for my six week check up and the doctor advised me to do a incision message to help with scar tissue and that it would also help my incision/stomach appear flatter. have any of you done this before? my first doctor did not tell me to do this so I was slightly surprised by it. I've watched several youtube videos on it and he suggested doing it twice a day but does anyone have more tips?